九年级上册（2024）1a-1e集体备课ppt课件

这是一份九年级上册（2024）1a-1e集体备课ppt课件，共27页。PPT课件主要包含了wondered，truth，record，Challenge ，safety，sleep，develop等内容，欢迎下载使用。
Sectin B（1a-1e）
· 学习目标· 新课导入· 内容讲解· 课堂总结
Learning gals
1. New wrds: gd, mysterius, spacecraft, bard, billin, trillin, cperate, galaxy, imaginatin, expectatin
2. Expressins: in case, n bard, cperate with, set ft n
3. Sentences: ① The man-made bject which has travelled farthest frm Earth is Vyager 1. ② The challenge f visiting the stars gets even bigger fr space flights with humans. ③ It seems likely that ne day we will reach the stars.
Hw far can we g int space?
gd /gɒd/ n. 神mysterius /mɪˈstɪəriəs/ adj. 神秘的；奇怪的spacecraft /ˈspeɪskræft/ n. (pl. spacecraft) 宇宙飞船bard /bɔːd/ n. 板；牌子billin /ˈbɪljən/ num. 十亿
trillin /ˈtrɪljən/ num. 万亿；兆cperate /kəʊˈɒpəreɪt/ v. 合作；协作galaxy /ˈgæləksi / n. 星系imaginatin /ɪˌmædʒɪˈneɪʃn/ n. 想象力；想象expectatin /ˌekspekˈteɪʃn/ n. 期望；希望
Where d yu prefer t find infrmatin abut space explratin? Chse the nes that are true fr yu.
A. Ppular science magazines. B. Science fictin bks. C. Online news.
Read the title and the text quickly. Where wuld yu find an article like this?
Reaching Fr the Stars
Since the beginning f human histry, peple have lked up at the stars and wndered what they were like. Many ancient cultures believed that these pints f light were frm gds r ther mysterius wrlds. Hwever, as technlgy and science develped, we learnt the truth abut stars. They are real places like ur wn sun, and they are farther away than anyne imagined. This raises the questin: Can we visit the stars ne day?
The man-made bject which has travelled farthest frm Earth is Vyager 1. This spacecraft was launched in 1977. In case Vyager 1 is fund by alien life, a special recrd with sunds and pictures frm Earth is carried n bard. It shws wh we are and where we are frm. By 2025, Vyager 1 was ver 25 billin kilmetres frm Earth, but that is still a lng way frm Earth’s secnd-clsest star, Prxima Centauri. That star is 4.2 light years away—abut 40 trillin kilmetres!
The challenge f visiting the stars gets even bigger fr space flights with humans. The farthest that any human has travelled in space is nly abut 400,000 kilmetres, t the far side f the mn. Time is a big prblem. At present, even a jurney t the planet Mars will take arund six t nine mnths. What will the astrnauts eat and drink during this perid? And hw abut their health and safety? These prblems grw when we talk abut visiting anther star. It might take hundreds f thusands f years t get there!
Scientists, hwever, believe that visiting the stars is nt a cmpletely wild dream. One idea is t have the astrnauts sleep during their jurney, like sme animals d in winter. Anther is t develp much faster spacecraft.
While this is nt pssible right nw, with natins and scientists cperating with ne anther, there is hpe that the necessary technlgy will be develped. Humans have phtgraphed ther galaxies, set ft n the mn, and even successfully landed rvers n Mars. It seems likely that ne day we will reach the stars.
Read again and match each paragraph with its main idea.
Paragraph 1 A. Lng distance space travel is difficult fr humans.Paragraph 2 B. Humans have lng been curius abut the stars.Paragraph 3 C. In the future, it may be pssible t visit a star.Paragraph 4 D. N spacecraft has travelled clse t a star.
1. “ in case ” 意为以防；万一；免得,引导目的状语从句，表提前做 准备，预防将来可能发生的事。
2. 易混辨析 • in case + 从句 = 以防万一 • in case f + 名词/代词 = 万一；倘若（后不接句子） • in n case = 绝不（句首倒装） • as is ften the case = 情况往往如此
3. in case 从句常用一般现在时表将来。主句将来/祈使，从句不用 will，用一般现在时。 例：Take an umbrella in case it rains.（带把伞，以防下雨）
1. I’ll leave my phne number here ______ yu need help. A. if B. in case C. unless D. until
2. 翻译句子。 我把地址写下来，以防我忘记。 I wrte dwn the address in case I frgt it.
Cmplete the mind map with the infrmatin frm the text. Yu can use yur wn wrds.
Human Imaginatin
Humans lked up at the stars and ________ what they were like.
Peple learnt the ______ abut stars as technlgy and science develped.
Achievement
Vyager 1 was launched in _______.
Vyager 1 carried a special _________.
Even a jurney t the planet Mars will take arund __________ mnths.
Astrnauts may face health and _________ prblems.
Expectatin
Astrnauts can _______ during their jurney.
We can _______ much faster spacecraft.
Discuss the questins. Find mre infrmatin t supprt yur answers.
1. What did sme ancient cultures think abut the stars? Why? Sme ancient cultures thught the stars were lights frm gds r mysterius wrlds, because they had n advanced technlgy t study stars scientifically.
2. What is carried n bard by Vyager 1? Why? Vyager 1 carries a special recrd with Earth’s sunds and pictures. It is fr alien life t learn abut humans if they find the spacecraft.
3. What is the farthest trip that a human has travelled frm Earth? D yu knw any details abut it? The farthest human trip frm Earth is abut 400,000 kilmetres, t the far side f the mn (frm the Apll missins).
4. What d yu think abut the future f space explratin? The future f space explratin is prmising. With technlgical prgress and internatinal cperatin, we may slve prblems like lng travel time and health risks, and ne day reach ther stars.
1. “ cperate with ” 意为合作；协作；配合。
2. 固定搭配核心结构 cperate with sb. 与某人合作/配合某人 例句：We shuld cperate with ur classmates. 我们应该和同学合作。
3. 同义替换 • wrk with sb. • team up with sb. • make jint effrts with sb.
1. 用所给词适当形式填空。 We need ____________ (cperate) with thers in grup wrk.
2. 翻译句子。 我们应该学会和他人友好合作。 We shuld learn t cperate with thers plitely.